Remove unnecessary file from version control.
Merge branch 'master' into dev
Merge remote-tracking branch 'remotes/origin/dev' into dev
Implement VTK read-in using library functions.

Compiles and appears to work with my single-scalar-quantity files.  Not tested on more-complex data files (multiple quantities, vectors, etc.).  Does not use the library functions for file-writing yet.
Debug VTK file IO using VTK libraries.
Update ignore settings.
Revert VTK-writing to use my routines.

Appears to be an error when using the VTK library to write data from my uniform volume class.  Using my own routine produces the expected results.  VTK libraries can read my file correctly.